Diastereoselective 1,3-dipolar cycloaddition of nitrilimines to γ-oxygenated α,β-unsaturated enones and esters
作者:Lutz Grubert、Guido Galley、Michael Pätzel
DOI:10.1016/0957-4166(96)00119-x
日期:1996.4
stereochemical outcome of the 1,3-dipolar cycloaddition of nitrilimines to γ-oxygenated α,β-unsaturated enones and esters was investigated. By means of X-ray and NMR analysis the main diastereomers were assigned as the syn-derivatives. Novel enantiomerically pure nitrilimines were included in the investigations but did not influence the stereochemical course of the cycloaddition significantly.
研究了亚硝胺的1,3-偶极环加成反应生成γ-氧化的α,β-不饱和烯酮和酯的立体化学结果。通过X射线和NMR分析,将主要的非对映异构体指定为顺式衍生物。新型对映体纯的亚硝胺被包括在研究中,但对环加成反应的立体化学过程没有明显影响。